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Identifying Factors Of Success For Renewable Energy Growth In The United States Of America, Alaa Masrahi
Identifying Factors Of Success For Renewable Energy Growth In The United States Of America, Alaa Masrahi
Open Access Dissertations
Energy consumption has a complex relationship with its physical, demographic, and behavioral characteristics. The literature review showed that renewable energy is an increasingly important issue in energy security and sustainability. The research on renewable energy consumption identifies the driving and obstructing factors. Renewable energy growth is associated with complex, interacting variables and requires concerted, multidisciplinary efforts for effective research and development. Thus, the aim of this study is to demonstrate the importance of findings that influence renewable energy consumption among 22 states. Our study seeks to understand and assert the complex energy perspective via the relationship between factors and nature …
Accelerating Data Accessing By Exploiting Flash Memory Technologies, Jing Yang
Accelerating Data Accessing By Exploiting Flash Memory Technologies, Jing Yang
Open Access Dissertations
Flash memory based SSD (solid state Drive) receives a lot of attention recently. SSD is a semiconductor device which provides great advantages in terms of high-speed random reads, low power consumption, compact size, and shock resistance. Traditional storage systems and algorithms are designed for hard disk drive (HDD), they do not work well on SSD because of SSD's asymmetric read/write performances and unavoidable internal activities, such as garbage collection (GC). There is a great need to optimize current storage systems and algorithms to accelerate data access in SSD. This dissertation presents four methods to improve the performance of the storage …
The Home And Child-Care: Are Preschoolaged Children Getting Mixed Food-Related Messages?, Noereem Zenaida Mena
The Home And Child-Care: Are Preschoolaged Children Getting Mixed Food-Related Messages?, Noereem Zenaida Mena
Open Access Dissertations
Statement of the Problem: In the United States, nearly 14% of preschool-aged children (ages 2 to 5) are obese. Additionally, disparities persist, with the highest prevalence of obesity among Hispanic preschool-aged children (17% vs. 11% non-Hispanic Black and 3.5% non- Hispanic White preschool-aged children). Establishing healthy eating habits in early childhood is critical and providing children with similar opportunities to practice healthy eating habits independently at home and in child care is thought to reinforce the development of healthy eating habits early in life. However, there is limited information regarding how parents and childcare providers communicate about child-nutrition, including …
What To Eat And When: The Consequences Of Polyunsaturated Fat Consumption And Pace Of Changes To Body Lipid Composition In Songbirds, Wales Aran Carter
What To Eat And When: The Consequences Of Polyunsaturated Fat Consumption And Pace Of Changes To Body Lipid Composition In Songbirds, Wales Aran Carter
Open Access Dissertations
Diet mediates environmental influence on organismal performance, but diets must be broken down into their constituent compounds and integrated into organismal tissues before they can exert such influence. Thus, a full account of the relationship between diet and organismal performance requires descriptions of intermediate effects on body composition and tissue function, as well as the dynamics of composition and function over time. The work described in this dissertation investigates a case study of diet and organismal performance in songbirds: dietary polyunsaturated fats have been demonstrated to influence the metabolic performance of songbirds, but the influence of individual fatty acid compounds, …
Sleep Duration, Postprandial Metabolic Function, And The Role Of Insulin Resistance In Nondiabetic Individuals, Karin A. Garcia
Sleep Duration, Postprandial Metabolic Function, And The Role Of Insulin Resistance In Nondiabetic Individuals, Karin A. Garcia
Open Access Dissertations
The influence of sleep duration on metabolic pathogenic pathways associated with Type 2 diabetes mellitus are not well understood but may be operational long before the development of clinical diabetes or even prediabetes is detected. This study was designed to examine in preclinical nondiabetic adults whether the association of insulin sensitivity and postprandial metabolic function is moderated by sleep duration. The sample was comprised of 143 individuals (65% men), aged 18–55 years, who had no diabetes or other diagnosed conditions. Metabolic function outcomes were assessed in response to an OGTT, and two 14-h serial mixed carbohydrate-meal tests administered, over 3 …
Identification And Quantification Of Wave Breaking Effects In Single-Polarization Along-Track Insar Imagery Of The Coastal Ocean, Conor J. Smith
Identification And Quantification Of Wave Breaking Effects In Single-Polarization Along-Track Insar Imagery Of The Coastal Ocean, Conor J. Smith
Open Access Dissertations
Spaceborne Along-Track Interferometric Synthetic Aperture Radar (along-track InSAR) has been used successfully to produce estimates of the surface current velocity field on a number of occasions. Along-track InSAR data are comprised of two complex images with a very short time lag, with each pixel containing an amplitude and phase. The phase difference allows a direct measurement of the line-of-sight velocity of the Bragg scattering ripples, which includes contributions of the horizontal surface current as well as the phase velocity of the Bragg ripples and orbital motions of longer waves. To calculate the surface current field, the complicated wave-related contributions to …
The Detection Of Hazardous Materials Using Genetically Engineered Bacteria, Daniel Wynn
The Detection Of Hazardous Materials Using Genetically Engineered Bacteria, Daniel Wynn
Open Access Dissertations
The development of technology that can be used to quickly and reliably assay a wide variety of matrices for the presence of specific small molecules has long been a high priority for scientists. These methods are valuable tools that see use in many fields, including biomedicine and environmental analysis. Although many contemporary technologies exist, their use is, for the most part, limited by their expense, required instrumentation, and long assay times. In an effort to address these limitations, many examples of biotechnology have been produced and this interest in biosensors continues. Herein, a number of projects to develop new bioanalytical …
Novel Methods For Improving Resolution In Liquid And Solid State Nuclear Magnetic Resonance Spectroscopy, Lauren Fae Odonnell
Novel Methods For Improving Resolution In Liquid And Solid State Nuclear Magnetic Resonance Spectroscopy, Lauren Fae Odonnell
Open Access Dissertations
NMR spectroscopy is a versatile analytical platform with a well developed theoretical foundation that makes it a popular vehicle for biological, chemical, material, and medical research. Successfully deciphering an NMR spectrum in order to extract important structural and chemical information typically requires the separation of overlapping signals that can be limited by the available spectral resolution, which is itself influenced by numerous factors such as molecular motions, spin-spin couplings, and field inhomogeneities. In this dissertation, methods for improving spectral resolution in both liquid and solids are explored. To begin, a brief introduction to NMR theory is provided which includes an …
Preschool Teachers' Science Knowledge: Validating The Preschool Teachers' Applied Science Knowledge Survey, Alexandra Danielle Alexander
Preschool Teachers' Science Knowledge: Validating The Preschool Teachers' Applied Science Knowledge Survey, Alexandra Danielle Alexander
Open Access Dissertations
Children are natural scientists, primed to investigate and evaluate their world. However, in the U.S., there are science achievement gaps already by kindergarten that persist through eighth grade. These achievement gaps coupled with stagnant and poor performance on science assessments have led to a current national focus on early science education. A likely contributor to these problems is the limited support that early science educators receive. Young children’s desire to understand their world is supported, nourished, and transformed into rigorous learning by adults. Supporting the adults in classrooms (i.e., early education practitioners) should, therefore, increase children’s learning. The present study …
Developing An Online Computational Thinking Instrument For Elementary Students, Guanhua Chen
Developing An Online Computational Thinking Instrument For Elementary Students, Guanhua Chen
Open Access Dissertations
This study is part of a larger design study that iteratively improves a robotics programming curriculum as well as a computational thinking (CT) instrument. Its focus was majorly on CT assessment and particularly on an online CT instrument with logging functionality that can store a student's problem-solving process by recording interactions between a test-taker and the items with timestamps. The purposes of this research were to examine the psychometric properties of an online CT instrument, test if significant improvement in CT could be found by 200 5th graders who took a robotics programming course and the CT instrument as pretest …
Reconstructing Uncertain Response Surfaces With Application To Lagrangian Ocean Data, Rafael Carvalho Goncalves
Reconstructing Uncertain Response Surfaces With Application To Lagrangian Ocean Data, Rafael Carvalho Goncalves
Open Access Dissertations
Motivated by the problem of predicting the transport of material in the ocean, the present work went after two general problems. One is to use a probabilistic Lagrangian oil model to forecast the fate of an oil spill. The other is to use a dense array of Lagrangian observations to estimate the near surface submesoscale velocity field. Both problems were tackled with methodologies based on the reconstruction of response surfaces. In the first part, an uncertainty quantification methodology based on a non- intrusive polynomial chaos approach is developed for the forecasting of oceanic oil spills. This allows the model’s output …
Surface Chemistry And Spectroscopic Studies Of Enzymatic, Non-Enzymatic Molecules And Their Applications, Shiv K. Sharma
Surface Chemistry And Spectroscopic Studies Of Enzymatic, Non-Enzymatic Molecules And Their Applications, Shiv K. Sharma
Open Access Dissertations
The content of this thesis is an investigation into physicochemical, photophysical, and interfacial properties of β-galactosidase, a crucial enzyme, its conjugate with CDs, interaction of β-galactosidase with X-gal, and surface chemistry and spectroscopic study of toxins, Cholera toxin B (CTB) and Fumonisin B1 (FB1). The objective of the work was to understand the surface chemistry behavior of the important enzyme, conjugates and toxins in a model systems representing vaguely cell membrane environments, to prove the activity of the deposited enzyme, its conjugate, and toxins in a form of the monolayer. We also studied the effect of green LED light on …
Decoding The Sleep Homeostat Architecture, Andrey Lazopulo
Decoding The Sleep Homeostat Architecture, Andrey Lazopulo
Open Access Dissertations
Sleep is an ancient behavior that is observed in nearly all organisms. Animals typically spend a significant part of their life sleeping, and prolonged sleep deprivation leads to serious physiological changes, signifying the importance of sleep. However, little is known about the regulation of sleep. Sleep is thought to be controlled by two mechanisms: the circadian clock, a biological oscillator that controls daily activity, and the sleep homeostat that tracks organism’s sleep need and controls the duration of sleep. While the circuit of the circadian clock is well studied, almost nothing is known about the structure of the sleep homeostat. …
Making Covenants With Brute Beasts: Making Room For Non-Human Animals In A Contractualist Framework, Jennifer Lynn Burgis
Making Covenants With Brute Beasts: Making Room For Non-Human Animals In A Contractualist Framework, Jennifer Lynn Burgis
Open Access Dissertations
In this dissertation I explore the question of whether T.M. Scanlon's contractualist ethical theory can be revised such that the resulting theory makes room for moral obligations to non-human animals. A number of attempts have been made to justify our intuitions regarding the treatment of animals, but none of these has succeeded. I argue that Scanlon's reliance on the rationality criterion is flawed and that a focus on moral capacities creates both a more inclusive and a more satisfying moral framework. By building on Julia Driver's objective consequentialist account of virtue, I am able to support the claim that, at …
Hispanic Ethnicity And Poison-Related Outcomes, Florida 2010-2015, Wendy Blair Stephan
Hispanic Ethnicity And Poison-Related Outcomes, Florida 2010-2015, Wendy Blair Stephan
Open Access Dissertations
Poisoning is the leading cause of injury death in the United States, with most fatal poisonings resulting from drug overdoses in adults. Much remains unknown about epidemiologic factors at the county level that might affect population risk for poison-related outcomes. Hispanic individuals consistently have lower death and hospitalizations rates from poisoning, so it was hypothesized that having a larger proportion of Hispanic residents, might, in effect, “protect” a county from high rates of poisoning. This ecological, longitudinal study examined Hispanic concentration at the county-level in Florida and the incidence of poison death, nonfatal hospitalizations from poisoning, and calls to poison …
Effects Of Temperature, Ultraviolet Radiation And Crude Oil Exposure On Early-Life Staged Mahi-Mahi (Coryphaena Hippurus), Christina Pasparakis
Effects Of Temperature, Ultraviolet Radiation And Crude Oil Exposure On Early-Life Staged Mahi-Mahi (Coryphaena Hippurus), Christina Pasparakis
Open Access Dissertations
The timing and location of the 2010 Deepwater Horizon (DWH) disaster within the Gulf of Mexico resulted in crude oil exposure of many commercially and ecologically important fish species, such as mahi-mahi (Coryphaena hippurus), during their sensitive early life stages (ELS). Mahi produce positively buoyant and rapidly developing embryos. Therefore, ELS mahi may be directly exposed to the cardiotoxic tricyclic PAHs dominating the oil slicks in surface waters for a significant portion of their developmental period. Further, these embryos are transparent and are likely also exposed to simultaneous stressors occurring in surface waters, known to act synergistically in the presence …
The Social Context Of Women's Sustained Participation In Activism, Susan Paterson
The Social Context Of Women's Sustained Participation In Activism, Susan Paterson
Open Access Dissertations
Recently, the resurgence of interest in feminist activism has been discussed by media and news outlets. It is still relatively unknown what contextual factors affect sustained participation, as well as how women from different backgrounds sustain activism in the face of compounding oppressions. This grounded theory explores the contexts of sustained participation through two research questions: (1) what are the contextual factors that influence women's sustained participation in activism?, and (2) how is the dynamic between identity and context reflected in sustained participation in activism? Nine women activists in Miami-Dade County were interviewed about their experiences in feminist movements, specifically …
Polycomb Complexes Associate With Enhancers To Regulate Oncogenic Pathways In Cancer, Ho Lam (Candy) Chan
Polycomb Complexes Associate With Enhancers To Regulate Oncogenic Pathways In Cancer, Ho Lam (Candy) Chan
Open Access Dissertations
The Polycomb repressive complexes play diverse and essential roles in cell fate decisions, embryonic development, stem cell pluripotency, and gene regulation. There are two main Polycomb complexes in mammalian cells, Polycomb Repressive Complex 1 and 2 (PRC1 and PRC2). PRC1 can be further subdivided into canonical and non-canonical complexes depending on its composition (cPRC1 and ncPRC1). Historically, Polycomb complexes have been mostly associated with maintaining gene repression carried out by its histone-modifying and chromatin-remodeling capabilities. Specifically, PRC1 can catalyze mono-ubiquitination of histone H2A on lysine 119 while PRC2 trimethylates histone H3 on lysine 27. Both these histone marks are associated …
A Comparative Analysis Of Techniques Of Euphonium And Vocal Performance Using Acoustical Properties, Brian Logan
A Comparative Analysis Of Techniques Of Euphonium And Vocal Performance Using Acoustical Properties, Brian Logan
Open Access Dissertations
After researching that many brass pedagogy texts make allusions to vocal performance as the ideal standard, this essay observed the ability of the euphonium performer to create different articulation sounds. Comparisons between voice and brass articulations were made. The effectiveness was determined by comparing pertinent acoustical components of brass methods to that of a single vocalist. To begin, this study catalogued preeminent suggested techniques for performing brass articulation found in method, pedagogy, magazine, and personal memoire texts. These techniques were collected into a list and given to a euphonium player subject from the University of Miami. In an anechoic chamber, …
Holocene-Pleistocene Climate Variability Through Stalagmites, Sevag Mehterian
Holocene-Pleistocene Climate Variability Through Stalagmites, Sevag Mehterian
Open Access Dissertations
Understanding the changing climate of the past is the key to understanding the changing climate of the present. Historically, various geologic mediums have been used to unearth the mysteries of the ancient past. These include cores of sediment from deep within the oceans, ice cores from glaciers, skeletons of coral reefs, and stalagmites from inside caves. This dissertation aims to shed light on the climate of the past 300,000 years as recorded within the geochemistry of stalagmites from caves in the Bahamas and Iran. With oxygen and carbon stable isotope geochemistry, radiometric dating through Uranium and Thorium, and trace elemental …
Radiative Transfer Diversity And Its Influence On The Response Of The Hydrological Cycle In Climate Models, Ryan Joseph Kramer
Radiative Transfer Diversity And Its Influence On The Response Of The Hydrological Cycle In Climate Models, Ryan Joseph Kramer
Open Access Dissertations
Due to considerable societal implications, accurately simulating the response of the hydrological cycle to climate change is an important focus of climate research. Currently, climate model simulations predict the hydrological cycle will strengthen globally with global warming, but the magnitude of this change remains highly uncertain. Here we identify sources of this uncertainty by diagnosing individual components of the radiative changes that constrain the hydrological cycle response. We show that the differing influences of CO2 increases on long-term anthropogenic climate change versus short-term internal climate variability explains differences in precipitation sensitivity on these time scales. We investigate the response of …
Novel Methods For Reasoning With Uncertain Hard And Soft Data Using Probabilistic And Belief Theoretic Methods, Rafael Camilo Nunez Sanchez
Novel Methods For Reasoning With Uncertain Hard And Soft Data Using Probabilistic And Belief Theoretic Methods, Rafael Camilo Nunez Sanchez
Open Access Dissertations
Effectively combining multiple and complementary sources of information is becoming one of the most promising paths for increased accuracy and more detailed analysis in numerous applications. Neuroscience, business analytics, military intelligence, and sociology are among the areas that could significantly benefit from properly processing diverse data sources. However, traditional methods for combining multiple sources of information are based on slow or impractical methods that rely either on vast amounts of manual processing or on suboptimal representations of data. Moreover, most of the existing methods are not well suited for dealing with the increasing amount of human-generated data. We introduce an …
The Roles Of Cloud Radiative Feedbacks And Ocean Heat Transport In Climate Variability, Eleanor Anne Middlemas
The Roles Of Cloud Radiative Feedbacks And Ocean Heat Transport In Climate Variability, Eleanor Anne Middlemas
Open Access Dissertations
Contributions from dynamical ocean heat transport and cloud radiative feedbacks to internal variations in sea surface temperature (SST) are explored using various climate modeling configurations in conjunction with intermodel comparison. The experimental modeling configurations include those with ocean heat transport and/or cloud radiative feedbacks disabled, resulting in a different, freely-evolving climate. By comparing the variability between experiment and control simulations, it is determined that the influence from either ocean dynamics or cloud feedback depends on the region and timescale. To begin, global-scale decadal changes in temperature do not require dynamical ocean heat transport, but instead, low-frequency variations in global mean …
Bioluminescence: An Old Tool For New Applications “Detection Of Circulating Tumor Cells And Image-Guided Therapy”, Yu-Ping Yang
Bioluminescence: An Old Tool For New Applications “Detection Of Circulating Tumor Cells And Image-Guided Therapy”, Yu-Ping Yang
Open Access Dissertations
The intrinsic sensitivity and low detection limits of bioluminescence have labeled this technique as a powerful tool for the detection of biomolecules at the cellular level, and real-time visualization of biological processes within living organisms. In our studies, we seek to develop novel bioluminescence-based detection and imaging techniques, and further investigate the feasibility and efficacy of these techniques in two major fields of oncology research: “Detection of circulating tumor cells” and “Image-guided therapy” Circulating tumor cells (CTCs) have shown potential in monitoring cancer prognosis and treatment response as well as providing novel insight into personalized medicine for guiding treatment decisions. …
Mechanisms Of Physiological Amyloidogenesis, Miling Wang
Mechanisms Of Physiological Amyloidogenesis, Miling Wang
Open Access Dissertations
Phase transitions of matter between gas, condensed liquid and solid states are ubiquitous in the physical world. Recent discoveries have shown that a dynamic continuum of material states also exists within the cellular environment. Whereas examples of mobile, liquid-like droplets are found throughout the cell, such as nucleoli and stress granules, examples of immobile, solid-like amyloid structures have largely been associated with pathological aggregates, and are considered the result of an aberrant liquid-to-solid phase transition. Here, we demonstrate stress-induced low complexity RNA activate a physiological liquid-to-solid phase transition to form solid-like Amyloid bodies (A-bodies). A-bodies are membrane-less compartments that can …
Psychiatric Severity And Hiv Risk In Adults With Mental Illness, Brady E. Yocom
Psychiatric Severity And Hiv Risk In Adults With Mental Illness, Brady E. Yocom
Open Access Dissertations
Adults with mental illness are at elevated risk of contracting HIV. To identify especially vulnerable subgroups of this population and to develop effective HIV-prevention interventions, a better understanding of the linkages between psychopathology and HIV risk is needed. The current study was designed to determine if factor-analytically derived indices of psychiatric severity based on MCMI-III scale scores were linked with HIV risk behavior and putative cognitive-behavioral mediators of risk behavior, and to determine if cognitive-behavioral factors mediated the expected relationships between psychiatric severity and HIV risk behavior. The sample included 280 adult men and women with mental illness. Greater general …
Sustainable Concrete Using Seawater And Glass Fiber Reinforced Polymer Bars, Morteza Khatibmasjedi
Sustainable Concrete Using Seawater And Glass Fiber Reinforced Polymer Bars, Morteza Khatibmasjedi
Open Access Dissertations
In order to improve the sustainability of the construction industry, which is responsible for 12 % of all fresh-water consumption, seawater could be an advantageous replacement for fresh water in mixing concrete especially in coastal regions where fresh water may be scarce. Seawater could potentially be used in unreinforced concrete and mortar (i.e. bricklaying, renders, etc.) or in combination with non-corrosive reinforcement (i.e. Glass Fiber Reinforced Polymer (GFRP) bars). In order to achieve the widespread usage of such technology, the fundamental behavior of seawater-mixed concrete and embedded GFRP bars need to be studied. This dissertation consists of three studies which …
The Design And Implementation Of A Comprehensive Back Injury Prevention Program And Development Of A Vo2max Non-Exercise Regression Model For Emergency Services Personnel, Tamer Hatem Elattar
The Design And Implementation Of A Comprehensive Back Injury Prevention Program And Development Of A Vo2max Non-Exercise Regression Model For Emergency Services Personnel, Tamer Hatem Elattar
Open Access Dissertations
Back injury prevention programs are cost efficient typically by reducing the num-ber of work-related injuries and lost work days in both fire fighters. Injury rates and sick leave usage can be reduced, thereby controlling overtime costs associated with filling vacant positions or utilizing other agencies for response. The measurement of fitness using exercise models is an important part of any fitness program and also the firefighters’ annual fitness evaluation. Those exercise models require cost, time and expose firefighters to risks of injury. We examined the difference in perceptions and knowledge about musculoskeletal injuries among emergency workers personnel with an emphasis …
The Role Of Cadm1 In Viral-Mediated Oncogenesis, Richard Anthony Hunte
The Role Of Cadm1 In Viral-Mediated Oncogenesis, Richard Anthony Hunte
Open Access Dissertations
Approximately 15% of human cancers worldwide, including leukemias and lymphomas, are caused by infection from oncogenic viruses, such as human T-cell lymphotropic virus 1 (HTLV-1) and Kaposi's sarcoma herpesvirus (KSHV). Oncogenes of these viruses, such as Tax of HTLV-1, and viral G-protein coupled receptor (vGPCR) and viral FLICE inhibitory protein (vFLIP) of KSHV, maintain persistent inflammation via activation of NF-kB, a family of transcription factors. NF-kB is normally transiently activated in response to TNF, IL-1, and bacteria or viral infections. However, under certain pathologic conditions, such as inflammation or tumorigenesis, it is chronically activated. Here we show host factor Cell …
Identification And Clinical Validation Of Novel Prostate Cancer Biomarkers Filamin A (Flna), Filamin B (Flnb), And Keratin 19 (Krt19) Using Patient-Derived Omics And Bayesian Artificial Intelligence, Niven Rajin Narain
Open Access Dissertations
This dissertation herein describes a novel strategy for Prostate Cancer (PCa) biomarker discovery employing use of systems biology causal modeling using omics, molecular phenotyping, and Bayesian artificial intelligence. Three studies were conducted towards this goal. In Study 1, a novel strategy that combines biological outputs with Bayesian network learning to identify potential biomarkers for prostate cancer was utilized. This methodology identified two proteins, filamin B (FLNB) and keratin-19, as potential biomarkers for prostate cancer. The network map also identified a direct linkage between FLNB and filamin A (FLNA), a protein previously identified as playing a role in prostate cancer etiology. …